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Python Using Databases in Python Gettin' CRUD-y With It CRUD: Search Function

Posted by Alexander Davison
Alexander Davison
65,469 Points

Peewee Challenge: CRUD Problem (SOLVED)

Can someone help me? I can't find the error in here.

Thank you in advance! ~Alexander

crud.py 
from models import Challenge


def create_challenge(name, language, steps=1):
    Challenge.create(name=name,
                     language=language,
                     steps=steps)

def search_challenges(name, language):
    results = Challenge.where(Challenge.name == name, Challenge.language == language)
    return results

1 Answer

John Lindsey
John Lindsey
15,641 Points
John Lindsey
John Lindsey
15,641 Points

Here is the code:

from models import Challenge


def create_challenge(name, language, steps=1):
    Challenge.create(name=name,
                     language=language,
                     steps=steps)

def search_challenges(name, language):
    results = Challenge.select().where(Challenge.name.contains(name), Challenge.language == language)
    return results

You need the select() before where(). The instruction also want you to see if the Challenge.name contains the name rather than them being equal. This can be done with contains(name). I had to read over the problem again because it is something that can be easily missed.

John Lindsey
John Lindsey
15,641 Points
John Lindsey
John Lindsey
15,641 Points

Also, if you're wondering why select() needs to come before where(), it's python's version of SQL where you the first line has to be SELECT (the FROM statement would be next to state the table, but for peewee this is accomplished by putting select() after Challenge which ultimately says we are selecting from Challenge) and then you would have WHERE after that.

Alexander Davison
Alexander Davison
65,469 Points

Thank you! I totally forgot the select() part.

Thanks! :) :dizzy: